Magic Dust
Flip a coin. If heads, the Defending Pokémon is now either Asleep, Confused, Paralyzed, or Poisoned (your choice).

20

Hyper Reverse
Does 10 damage times the number of Energy attached to the Defending Pokémon. After doing damage, remove a number of damage counters from Butterfree equal to the amount of damage done to the Defending Pokémon (after applying Weakness and Resistance).